DDR2 Really a No-No for LGA 1156?

[r_manic]

Ok, I know what was posted here, but DDR2 RAM really won't work with Lynnfield motherboards? Why? Shouldn't DDR3 be backward compatible with DDR2, with the latter providing slower throughput of course?

 

[taavi]

1. DDR3 = lower volt.
2. DDR3 can't be fit in the DDR2 socket. The little "key" is in another position.

 

[huron]

NO - DDR2 and DDR3 do not fit and are not backwards compatible, just the same as DDR2 and DDR were not either.

Like taavi said, they have different specs (voltage being one).

 

[Scotteq]

Ok, I know what was posted here, but DDR2 RAM really won't work with Lynnfield motherboards? Why? Shouldn't DDR3 be backward compatible with DDR2, with the latter providing slower throughput of course?

...because the memory controller is built into the processor and therefore can not be changed.